Welcome! Please use the navigational links on your left to explore our website.

Company Logo Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs

Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Kountry Life
Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum

Please Help Identify and Carburator Issue

Welcome Guest, Log in or Register
Author  [Modern View]

06-11-2019 09:35:41

Report to Moderator

I'm looking for some help identifying my tractor and solving a carburetor issue.

I would like to know what the numbers on the serial number plate mean. The serial number plate is down by the clutch pedal. The plate is trapezoid shaped with two rivets on the top and one on the bottom. There are two series of stamped numbers on the plate. The series of numbers on the top row are:

The series of numbers on the bottom row are:

234 933 -019

My guess is that the serial number is 234 933 which means it's a 1972 Oliver 550:

1. Can anyone confirm?
2. and what does the top series of numbers mean?
3. And what does the -019 after the serial number mean?

Real issue: As you can see from the picture with the carburetor, there is a thumb screw missing and gas is leaking out of the carb. Can I buy that thumb screw? If so what is it called? and What does it do?

Any help would be greatly appreciated.
Thank you.

[Log in to Reply]   [No Email]
B A Star

06-11-2019 21:01:04

Report to Moderator
 Re: Please Help Identify and Carburator Issue in reply to Nazman, 06-11-2019 09:35:41  
  Your tractor was built in 1972, note the Product Identification plate is after the second merger of Oliver and MM when headquarters was relocated to Butterfield, Il.

  Top row of numbers: 515 is the model number, a late 550, last model built.   Following the dash after 515 the 7 means it was built as a 2 wheel drive Industrial.   1 means it was built with a gas engine.   Last three is how the tractor was assembled.

[Log in to Reply]  [No Email]

06-11-2019 19:01:46

Report to Moderator
 Re: Please Help Identify and Carburator Issue in reply to Nazman, 06-11-2019 09:35:41  
Thats my bad. That out of focus pic had me fooled. I see the drain plug now blended into the background. It's a type c with an adjustable needle. I agree. Looks like the needle assembly is missing.

[Log in to Reply]  [No Email]

06-11-2019 10:12:26

Report to Moderator
 Re: Please Help Identify and Carburator Issue in reply to Nazman, 06-11-2019 09:35:41  
That's just your carb bowl drain screw that's missing. Yes, those can be sourced. It should be a Marvel Schebler TSX-811. Offhand, I'd try a brass 1/8 pipe thread plug. I could be wrong. It wouldn't be the first time.

[Log in to Reply]  [No Email]

06-11-2019 15:14:37

Report to Moderator
 Re: Please Help Identify and Carburator Issue in reply to scootergmc, 06-11-2019 10:12:26  
That's NOT the drain plug that is missing. The plug can be seen to the left. That carb has an adjustable main jet and he is missing the adjustment needle, or whatever the correct term is. Sorry the pic is sideways. Got a new computer and I'm having issues learning.

[Log in to Reply]  [No Email]
J. Schwiebert

06-11-2019 09:39:17

Report to Moderator
 Re: Please Help Identify and Carburator Issue in reply to Nazman, 06-11-2019 09:35:41  
It is a late 550/ 019 is the code for the transmission.

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). We have the parts you need to repair your tractor - the right parts. Our fast shipping, low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums

Copyright © 1997-2019 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy